TY JOUR TI Main criteria for assessing the content of heavy metals in bottom sediments of water bodies KW sediments KW heavy metals KW pollutants KW technogenic load KW forms of existence KW solid phase JO Melioration and Water Management AU Korzhenevskiy, B.I. AU Tolkachev, G.Y. AU Kolomiycev, N.V. PY 2020 IS 2020 PB ANO Editorial Board Melioration and water management